/* dfmchn design system — tokens extracted from https://dfmchn.com/style.css */
@font-face {
  font-family: "Space Grotesk";
  src: url("/static/fonts/SpaceGrotesk-400.woff2") format("woff2");
  font-weight: 400 500; font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("/static/fonts/JetBrainsMono-400.woff2") format("woff2");
  font-weight: 400 500; font-display: swap;
}
@font-face {
  font-family: "Newsreader";
  src: url("/static/fonts/Newsreader-Italic.woff2") format("woff2");
  font-style: italic; font-weight: 400; font-display: swap;
}

:root {
  --ink: #0B0C0E;
  --surface: #16181C;
  --hairline: #272B31;
  --hairline-strong: #3A3F47;
  --text: #ECEAE3;
  --text-sub: #AEB2B9;
  --text-muted: #8A8F98;
  --phosphor-dim: #3FAE26;
  --phosphor: #4AFF00;
  --on-phosphor: #0A2600;
  --bad: #dc2626;
  --btn-radius: 2px;
  --maxw: 1180px;
  --grotesk: "Space Grotesk", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--ink);
  color: var(--text);
  font-family: var(--grotesk);
  font-size: 16px;
  line-height: 1.55;
}

/* ---------- chrome ---------- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  max-width: var(--maxw); margin: 0 auto; padding: 18px 24px;
  border-bottom: 1px solid var(--hairline);
}
.wordmark { font-family: var(--mono); font-weight: 500; font-size: 16px;
  color: var(--text); letter-spacing: -0.01em; }
.topnav { display: flex; gap: 22px; align-items: center;
  font-family: var(--mono); font-size: 13px; color: var(--text-muted); }
.nav-user::before { content: "· "; color: var(--hairline-strong); }
.inline-form { display: inline; margin: 0; }
.nav-link-btn { background: none; border: none; padding: 0; cursor: pointer;
  font-family: var(--mono); font-size: 13px; color: var(--text-muted); }
.nav-link-btn:hover { color: var(--phosphor); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 28px 24px 60px; }

.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em;
  text-transform: lowercase; color: var(--text-muted); margin: 0 0 10px; }
.eyebrow.ph-dim { color: var(--phosphor-dim); }

h1 { font-family: var(--grotesk); font-weight: 500;
  font-size: clamp(28px, 6vw, 40px); letter-spacing: -0.02em; margin: 0 0 10px; }
.lede { font-family: var(--serif); font-style: italic; font-size: 19px;
  color: var(--text-sub); max-width: 680px; margin: 0 0 8px; }
.lede strong { font-style: normal; font-family: var(--grotesk);
  font-weight: 500; color: var(--text); }

.panel { border: 1px solid var(--hairline); background: var(--surface);
  padding: 18px; border-radius: var(--btn-radius); }

.btn { font-family: var(--mono); font-size: 13px; letter-spacing: 0.02em;
  text-transform: lowercase; padding: 8px 14px; cursor: pointer;
  border-radius: var(--btn-radius); border: 1px solid var(--hairline-strong);
  background: transparent; color: var(--text);
  transition: border-color .15s, background .15s, color .15s; }
.btn-ghost:hover { border-color: var(--text-sub); }
.btn-phosphor { border-color: var(--phosphor); color: var(--phosphor); }
.btn-phosphor:hover { background: rgba(74,255,0,.06); }
.btn-full { width: 100%; margin-top: 16px; }

/* ---------- layout ---------- */
.intro { margin-bottom: 26px; }
.cols { display: grid; grid-template-columns: 340px 1fr; gap: 24px;
  align-items: start; }
@media (max-width: 900px) { .cols { grid-template-columns: 1fr; } }
.outputs { display: flex; flex-direction: column; gap: 26px; }

/* ---------- levers ---------- */
.controls-note { font-size: 13px; color: var(--text-muted); margin: 0 0 14px; }
.preset-row { display: flex; gap: 10px; margin-bottom: 18px; }
.preset-row .btn { flex: 1; }
.lever { margin-bottom: 16px; }
.lever-label { display: block; font-size: 14px; font-weight: 500;
  color: var(--text); margin-bottom: 4px; }
.lever-row { display: flex; align-items: center; gap: 10px; }
.lever-value { font-size: 12px; color: var(--phosphor); min-width: 44px;
  text-align: right; }
.mono { font-family: var(--mono); }
.lever-help { font-size: 12px; color: var(--text-muted); margin: 4px 0 0; }

input[type="range"] { flex: 1; appearance: none; -webkit-appearance: none;
  height: 3px; background: var(--hairline-strong); border-radius: 2px;
  outline: none; accent-color: var(--phosphor); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none;
  width: 14px; height: 14px; border-radius: 50%; background: var(--phosphor);
  border: 2px solid var(--ink); cursor: pointer; }
input[type="range"]::-moz-range-thumb { width: 12px; height: 12px;
  border-radius: 50%; background: var(--phosphor); border: 2px solid var(--ink);
  cursor: pointer; }

/* ---------- metrics ---------- */
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 700px) { .metrics { grid-template-columns: 1fr; } }
.metric { border: 1px solid var(--hairline); background: var(--surface);
  padding: 14px 16px; border-radius: var(--btn-radius); }
.metric-label { font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.04em; text-transform: lowercase; color: var(--text-muted);
  margin: 0 0 6px; }
.metric-value { font-family: var(--mono); font-weight: 500; font-size: 34px;
  line-height: 1.1; color: var(--text); }
.metric-delta { font-family: var(--mono); font-size: 12px; margin-top: 6px; }
.metric-delta.up { color: var(--bad); }
.metric-delta.down { color: var(--phosphor-dim); }
.metric-delta.flat { color: var(--text-muted); }

.insight { border: 1px solid var(--hairline); border-left: 2px solid
  var(--phosphor-dim); background: var(--surface); padding: 12px 16px;
  margin-top: 14px; font-size: 14px; color: var(--text-sub);
  border-radius: var(--btn-radius); }

/* ---------- bars ---------- */
.chart-panel { padding-bottom: 12px; }
.bars { display: flex; gap: 18px; align-items: flex-end; height: 240px;
  padding: 10px 4px 0; }
.bar-group { flex: 1; display: flex; flex-direction: column;
  justify-content: flex-end; height: 100%; }
.bar-pair { display: flex; gap: 4px; align-items: flex-end; height: 100%; }
.bar { flex: 1; border-radius: 2px 2px 0 0; position: relative;
  transition: height .25s ease; min-height: 2px; }
.bar-before { background: var(--text-muted); opacity: .55; }
.bar-after { background: var(--bad); }
.bar-num { position: absolute; top: -18px; left: 50%;
  transform: translateX(-50%); font-family: var(--mono); font-size: 10px;
  color: var(--text-muted); white-space: nowrap; }
.bar-name { font-size: 11px; color: var(--text-sub); text-align: center;
  margin-top: 8px; line-height: 1.3; min-height: 30px; }
.chart-caption { font-size: 12px; color: var(--text-muted); margin: 10px 4px 0; }
.swatch { display: inline-block; width: 10px; height: 10px; border-radius: 2px;
  vertical-align: -1px; }
.swatch-before { background: var(--text-muted); opacity: .55; }
.swatch-after { background: var(--bad); }

/* ---------- journey ---------- */
.journey-panel svg { width: 100%; height: auto; display: block; }
.journey-node-label { font-family: var(--grotesk); font-size: 15px;
  fill: var(--text); }
.journey-node-share { font-family: var(--mono); font-size: 12px;
  fill: var(--text-sub); }
.legend { margin-top: 10px; font-size: 14px; color: var(--text-sub); }
.legend summary { cursor: pointer; font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.04em; text-transform: lowercase; color: var(--text-muted); }
.legend ul { list-style: none; padding: 10px 0 0 4px; margin: 0; }
.legend li { margin-bottom: 6px; }
.dot { display: inline-block; width: 11px; height: 11px; border-radius: 50%;
  margin-right: 6px; vertical-align: -1px; }

.tooltip { position: fixed; z-index: 10; max-width: 300px;
  background: var(--ink); border: 1px solid var(--hairline-strong);
  color: var(--text-sub); font-size: 12.5px; line-height: 1.45;
  padding: 8px 10px; border-radius: var(--btn-radius); pointer-events: none; }

.fineprint { font-size: 12.5px; color: var(--text-muted); border-top: 1px solid
  var(--hairline); padding-top: 14px; max-width: 760px; }

/* ---------- login ---------- */
.login-body { display: flex; min-height: 100vh; align-items: center;
  justify-content: center; }
.login-wrap { width: 100%; max-width: 400px; padding: 24px; }
.login-panel { padding: 28px; }
.login-panel .wordmark { margin-bottom: 14px; display: block; }
.login-h { font-size: 26px; margin: 0 0 14px; }
.login-error { color: var(--bad); font-size: 14px; margin: 0 0 10px; }
.login-form { display: flex; flex-direction: column; }
.field-label { font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.04em; text-transform: lowercase; color: var(--text-muted);
  margin: 12px 0 4px; }
.field { background: var(--ink); border: 1px solid var(--hairline-strong);
  border-radius: var(--btn-radius); color: var(--text); font-family:
  var(--grotesk); font-size: 15px; padding: 9px 11px; outline: none; }
.field:focus { border-color: var(--phosphor-dim); }
.login-note { font-size: 12.5px; color: var(--text-muted); margin: 16px 0 0; }